tosca integration with microsoft dynamics

What kind of integration do you mean? Or do you just mean whether Tosca can automate MS Dynamics?

You can use Tosca to automate MS Dynamics (it’s web based), but there is no specialised engine for it like there is for SAP Fiori, Salesforce etc so you might need to pull out some extra tricks to identify and steer some of its controls. (This is the same case as most modern web applications.)